Helena Weather History Montana, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
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Wed 15 Oct, 2025 Weather in Helena

Sunrise: 07:47 AM Sunset: 06:40 PM	Moonrise: 01:19 AM Moonset: 04:37 PM	Max: 3.0 °c	Min: -0.1 °c	Avg: 1.7 °c	Precip: 33.40 mm	Max Wind: 5.0 kph

	Wed 15 0:00 am	Wed 15 3:00 am	Wed 15 6:00 am	Wed 15 9:00 am	Wed 15 12:00 pm	Wed 15 3:00 pm	Wed 15 6:00 pm	Wed 15 9:00 pm
Icon
Temp	1.5°c	1.6°c	1.4°c	1.3°c	2.2°c	3.0°c	2.4°c	0.6°c
Wind	2.5 kmph	2.5 kmph	1.4 kmph	0.7 kmph	1.1 kmph	0.4 kmph	2.5 kmph	4.0 kmph
Precip	1.80 mm	1.00 mm	0.00 mm	4.90 mm	4.20 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	100%	90%	100%	100%	100%	97%	83%	100%
Humidity	97%	98%	98%	98%	94%	92%	95%	99%
Pressure	919 mb	925 mb	931 mb	937 mb	943 mb	949 mb	955 mb	961 mb

Helena Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	-2°C / 29°F	-10°C / 14°F	-6°C / 21°F	169 hours	21.38 mm / 0.84 In	7 days	1023 mb / 31 In
February	-2°C / 29°F	-11°C / 13°F	-6°C / 21°F	131 hours	29.63 mm / 1.17 In	9 days	1020 mb / 31 In
March	5°C / 41°F	-5°C / 23°F	0°C / 31°F	174 hours	33.33 mm / 1.31 In	7 days	1016 mb / 30 In
April	9°C / 49°F	-2°C / 29°F	4°C / 39°F	173 hours	50.71 mm / 2.00 In	9 days	1015 mb / 30 In
May	16°C / 60°F	3°C / 38°F	10°C / 49°F	204 hours	69.09 mm / 2.72 In	9 days	1013 mb / 30 In
June	21°C / 70°F	8°C / 46°F	15°C / 59°F	246 hours	73.19 mm / 2.88 In	7 days	1012 mb / 30 In
July	28°C / 82°F	12°C / 53°F	20°C / 68°F	315 hours	27.82 mm / 1.10 In	5 days	1014 mb / 30 In
August	27°C / 80°F	12°C / 53°F	19°C / 67°F	311 hours	29.02 mm / 1.14 In	4 days	1014 mb / 30 In
September	22°C / 71°F	8°C / 46°F	14°C / 58°F	277 hours	44.86 mm / 1.77 In	4 days	1014 mb / 30 In
October	11°C / 53°F	0°C / 32°F	5°C / 42°F	225 hours	35.06 mm / 1.38 In	5 days	1017 mb / 31 In
November	4°C / 38°F	-6°C / 21°F	-2°C / 29°F	202 hours	24.65 mm / 0.97 In	6 days	1020 mb / 31 In
December	-2°C / 29°F	-10°C / 14°F	-6°C / 21°F	178 hours	23.46 mm / 0.92 In	8 days	1021 mb / 31 In

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